Be able to place the following events into their correct eon: Origin of the earth Origin of prokaryotes Increase in atmospheric oxygen Origin of eukaryotes Radiation of mammals Earliest human ancestors Origin of genus Homo

Q: 4. Fill in the table: Step of how life started 1- evolution of monomers 2- evolution of polymers…

A: The flow of genetic information in a biological system is explained by central dogma and it involves…

Q: RNA is often characterized as being the first“biologically active” molecule. What two properties or…

A: The RNA world is a hypothetical stage in the evolutionary history of life on earth, in which self…

Q: When considering the entire period of time during which life on Earth has been evolving, we must…

A: To understand the change in flora and fauna that have occurred over million of years on Earth ,we…

Q: Explain the Big Bang Theory of Evolution and compare it with the Creation Story in the Book of…

A: Cosmology is the study of the universe's origin, characteristics, operations, and evolution.…

Q: One of the prerequisites for chemical evolution on early Earth is that there was an adequate amount…

A: Early earth is not rich with oxygen until photosynthetic bacteria arrived after that oxygen levels…

Q: Which of the following is not a reason why RNA is expected as one of the first primary molecules in…

A:

Q: Understand the importance of the Miller-Urey experiments that recreated the conditions present in…

A: Stanley Miller and Harold Urey demonstrated in their experiment that UV radiations or electric…

Q: The dorsal fin of a dolphin (class Mammalia), and the dorsal fin of a shark (class Chondrichthyes),…

A: Anatomical evidence of evolution helps in determine similarity and dissimilarity of recent organic…

Q: Table 1 Millions of Years Ago (Mya) Event First humans (genus Homo) The Origin of the Earth First…

A: According to astronomical research and geological evidence, scientists indicate the universe is…

Q: The great apes made their first appearance in the fossil record between 23 and 2.6 MYA, which:…

A: The question is asking us to identify which geological period corresponds to the time frame of 23 to…

Q: NOW TO CONCLUDE, ANSWER THE QUESTION. 1. ARE WE ON THE BRINK OF A MASS EXTINCTION? WHAT WOULD BE…

A: The loss of around three-quarters of currently living species in a relatively small geological…

Q: Which of the following geologic periods is not part of the Paleozoic Era? the Carboniferous Period…

A: The objective of the question is to identify which of the given geologic periods does not belong to…

Q: Which of the following scientists claimed that all cells (from animals, fungi, plants, protists, and…

A: The evolutionary theory supports the idea that all the organisms existing on the earth today are…

Q: During the first 600 million years of Earth history, enzymes, ATP , and other molecules could have…

A: The primitive earth was in the form of a red hot, solidified cloud containing free atoms. The…

Q: Stanley Miller and Harold Urey provided the first experimental evidence that        . Group of…

A: Introduction :- The Miller–Urey experiment was a chemical experiment that reproduced the…

Q: Which of the following eras in Earth's history is the longest? Precambrian Cenozoic Paleozoic…

A: A geological era divides eon into smaller unit of time. Geological era are further divided into…

Q: Without an oxygen-free atmosphere, the organic compounds that started the story of life never would…

A: The Earth has been significantly altered by life. Organisms have influenced the composition of the…

Q: Most likely the proto-cells were little more than membrane sacs protecting information-storing…

A: The evolution of the cell membranes plays a very important role in the adaptation of modern cellular…

Q: Colonization of Land The Cambrian explosion Flowering plants Endosymbiosis Origin of Reptiles First…

A: Introduction : The Geologic Time Scale divides the Earth's history into four…

Q: -If 30 percent of the carbon-14 atoms remain in a sample, how long ago did the organism die? -Is…

A: The unstable isotope of the carbon is Carbon 14 (C-14). The half-life of a C-14 is 5730 years old.…

Q: Describe how the sudden appearance of oxygen in the atmosphere about 2.5 billion years ago…

A: Since life first emerged on Earth between 3.5 and 4 billion years ago, it has continued to develop.…

Q: To describe: The reason behind the history's largest waves of extinction.

A: The species appears and disappears in a consistent and relentless manner. Mass extinction events…

Q: creationism?

A: Creationism At a broad level, a Creationist is someone who believes in a god who is absolute creator…

Q: All living organisms use DNA and RNA as their genetic code. Humans and roundworms, in fact, have 25%…

A: Evolution is defined as the change in trait of an individual in a species over a period of time.

Q: Discuss why chemical evolution was necessary beforebiological evolution could occur.

A: It is believed that the formation of complex organic molecules (or the organic molecule) occured…

Q: Through which of the following sequences did chemical evolution MOST likely take place? Protobionts,…

A: According to Oparin, coacervate serves as a bridge between loose complex organic molecules and…

Q: Four billion years ago, the Earth was a thin-crusted inferno. Which probable stage of physical and…

A: Solar system was originated around 4.6 billion years ago from contraction of rotating gas and dust…

Q: With regard to the origin of life, why are biologistsinterested in the prebiotic synthesis of…

A: Introduction The Oparin-Haldane model suggested that under the highly reducing atmosphere of…

Q: Metagenesis takes place below the Earth's surface where temperature is less than 150°C . Select one:…

A: Answer : True

Q: Which Of the following is not a reason why micro organisms  are commonly able to evolve very…

A: Microbes are microscopic organisms that have very diverse and significant roles in the world. Often…

Q: Which of the following evidence most strongly supports the common origin of all life on Earth? *

A: Answer : Universality of the genetic code.

Q: Lichens are formed by an association between: fungi and plants O algae and plants O protists and…

A: Introduction Ecology:- It is the study of the relationship between living organisms and their…

Q: - How much time does it take for 1 half-life to occur?   -Approximately how many half-lives are…

A: Carbon is the element that is most commonly found in organic molecules. All organisms have a carbon…

Q: Order the events relative to one another based on when each occurred in the fossil record. Earlier…

A: Fossils are the preserved remains of ancient organisms ( including animals, plants and…

Q: Evolution is one of the major unifying concept of modern biology. Explain the mechanisms that lead…

A: Evolution is a natural process that includes several changes over many generations in the…

Q: EGG SPERM EMBRYO Growth and development Continuity of life

A: Life processes such as growth and reproduction are shared by all living creatures. To establish if…

Q: The origin of life happened under planetary conditions C very similar than those at the present…

A: There has been much discussion over the beginning of life on Earth. The evolution of life has been…

Q: All the following statements support the theory that similar organisms have a common ancestor except…

A: Introduction The change in the heritable characteristics in a population over a period is termed…

Q: The best studied of the mass extinctions is the Cretaceous extinction. Why do you think it has been…

A: The mesozoic era began with the Triassic period and ended with the Cretaceous period. The Cretaceous…

Q: 29) The Cretaceous extinction. which was the most recent mass extinction, occurred about 65.5…

A: Natural selection, or evolution, is the process by which a species' features evolve over a number of…

Q: The term Anthropocene implies that

A: Epoch, in general, termed as a very important period of time in history

Q: Survey the Landscape - Evidence of evolution . "What "other evidence in addition to fossils and DNA,…

A: Evolution, a cornerstone of modern biology, provides a comprehensive explanation for the diversity…

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.